Gold Member

The others already said the most important: lots of fruits and vegetables, only whole foods (brown rice, whole wheat pasta, whole wheat cereals, such as weetabix and all-bran, ...).
I would like to add the importance of drinking at least 1.5 litres of water (3 pints or 6 glasses) everyday because fiber needs water to bulk and work properly

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Enjoy the little things, for one day you may look back and realize they were the big things. ~Robert Brault

Full Member

pulses are also very high in fiber...like lentils and chickpeas and beans. Also you can buy packs of high fibre bran/seed mixes that you can sprinkle on your cereal to increase the fibre content...maybe hit the health food store. Also you can take a supplement of slippery elm which you have as a drink with lots of water...that is VERY high!